CHEMICAL AND PHYSICAL PROCESSES OF DIGESTION
CHEMICAL AND PHYSICAL PROCESSES OF DIGESTION
CHEMICAL AND PHYSICAL PROCESSES OF DIGESTION
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Table 1: Digestion and absorption of foodstuffs (from Maried, Fig. 39A.1)<br />
Path of absorption Foodstuff Enzyme(s) and source Site of action<br />
Carbohydrate<br />
absorption<br />
Product consumed Starch and disaccharides<br />
Lactose, Maltose,<br />
Sucrose<br />
End-product absorbed: Galactose, Glucose and<br />
Fructose<br />
Protein digestion<br />
Product consumed Proteins<br />
Salivary amylase Mouth<br />
Pancreatic amylase Small intestine<br />
Brush border enzymes Small intestine<br />
(lactase, maltase,<br />
sucrase, and dextrinase)<br />
Pepsin Stomach<br />
Large Polypeptides Pancreatic enzymes<br />
(trypsin, chymotrypsin<br />
and carboxypeptidase)<br />
Small polypeptides,<br />
small peptides<br />
End-product absorbed: Amino acids (some<br />
dipeptides and<br />
tripeptides)<br />
Fat digestion<br />
Product consumed Unemulsified fats<br />
End-product absorbed: Monoglycerides,<br />
glycerol, and fatty acids.<br />
Brush border enzymes<br />
(aminopeptidases,<br />
carboxypeptidase, and<br />
dipeptidases)<br />
Emulsification by<br />
detergent action of bile<br />
salts ducted in from<br />
liver<br />
Lumen of small<br />
intestine<br />
Brush border of small<br />
intestine.<br />
Small intestine<br />
Pancreatic lipase Small intestine<br />
2
Change language